iOptron® iEQ45 GEM with Tripod       priced at $1,799.-


The iEQ45TM GOTO German equatorial mount is the first in a new breed of premium astro-imaging mounts from iOptron. Now it comes available with a modified DEC clutch for free spin OTA balance.


The iEQ45TM mount offers the next generation GoTo technology from iOptron —not to mention built-in 32-bit GPS. With a payload of 45 lbs. balanced – it comes standard with a calibrated dark field illumination polar scope and a sturdy 2-inch stainless steel tripod. It also fits both Vixen and Losmandy-type mounting plates.  Its lighter weight (only 25 lbs.) makes it much easier to carry.


New Features for 2013:

● Losmandy/Vixen dual saddle

● Worm gear improvements

● Die-caste metal tripod spreader/tray

◦ Specialized astrophotography mount ideal for entry-level and intermediate astrophotographers

◦ Payload: 45 lbs

◦ Mount weight: 25 lbs

◦ Portable, compact, and sturdy German equatorial mount with the highest Payload/Mount ratio

   (1.7)  in the category

◦ ST-4 autoguiding port capable of reverse guiding with auto-protection

◦ Permanent periodic error correction (PEC)

◦ Ultra-accurate tracking with temperature compensated crystal oscillator (TCXO)

◦ Gap-free structure for both R.A. and declination worms

◦ Built-in 32-channel GPS

◦ Hand controller with Advanced GOTONOVA® GoTo Technology and heating mechanism

◦ Lowest working temperature: -20oC

◦ RS232 port for mount firmware upgrade and ASCOM control

◦ Resolution: 0.09 arc second

◦ Spring loaded dual size dovetail saddle for both Vixen and Losmandy-type mounting plates

◦ 2 inch heavy-duty stainless steel tripod legs (17.1 lbs)

◦ Die cast metal tripod spreader with accessory tray

◦ Optional pier.

◦ AccuAligningTM polar scope with dark-field illumination and Quick Polar Alignment procedure,

    allowing for fast and accurate polar alignment

◦ Comes standard with: 2 x 5kg counterweight, AC adaptor, 12V DC car plug adaptor, RS232-RJ9

   cable and RS232 cable

Technical Specifications:



Mount Weight

Payload/Mount Weight

Right Ascension Worm Wheel

Declination Worm Wheel

Right Ascension Axis

Declination Axis

Motor Drive



Latitude Adjustment Range

Azimuth Adjustment Range


Polar Scope

Level Indicator

Hand Controller




Counterweight Bar




Power Consumption

Power Requirement

AC Adapter

Serial port

RS232 port

Firmware Upgrade

PC Computer Control

Working Temperature


German Equatorial Mount

45 lbs (20kg), excluding counterweight

20 lbs (11.4kg)


Ø130mm, 216 teeth aluminum

Ø115mm, 192 teeth aluminum

Ø50mm steel

Ø40mm steel

Planetary Gear Reducer DC servo with encoder

0.09 arc seconds

Synchronous belt/Gear

5° ~ 70°

± 6°

Internal 32-channel GPS

Yes. AccuAligningTM Polar Scope with dark field illumination

Precision bubble

Go2Nova® 8407 with 358,000 objects database

Permanent PEC




11 lbs (5kg) X 2 (included)

2” Stainless Steel (16.5lbs or 7.5kg)

Losmandy/Vixen dual saddle

0.25A(Tracking), 1.2A(GOTO)

12V DC(11 ~ 15V), 2Amp

100V ~ 240V (included)

Yes (on hand controller)

Yes (on mount)



-20°C ~ 40°C

Two year limited

iStar Optical and iOptron Mounts have partnered to create a winning combination.


A mount company that cares as much about quality as we do. We use the iOptrons personally. We now offer iOptrons mounts separately or as packages that include our scopes. Ask us about special pricing for complete packages including OTA, tube rings, dovetail and iOptrons mount.


Coming soon complete “Turn Key” packages for imaging including OTA, mount and guidescope.